clock.java
import java.util.*;
import java.text.*;
public class Clock
{private int hours;
  private int minutes;
    private int seconds;
    int minutesleft, secondsleft;
    //Constructor
   //item a
    Clock()
    {
      hours=0;
      minutes=0;
      seconds=0;
    }
    //item b
    Clock(int h, int m, int s)
    {hours=h;
      minutes=m;
      seconds=s;
    }
     //Accessors
     //item c
    public void setTime(int h, int m, int s)
    {
     hours=h;
     minutes=m;
     seconds=s;
    }
   //item d
    public int getHours()
    {return hours;
    }
   //item e
    public int getMinutes()
    {return minutes;
    }
  //item f
    public int getSeconds()
    {return seconds;
    }
 
    //item g
       public void setHours(int h)
    {hours=h;
    }
    //Modifiers
    //item h
    public void setMinutes(int m)
    {minutes=m;
 
    }
    //item i
   public void setSeconds(int s)
    {seconds=s;
    }
   //item j
   public void printTime()
   { System.out.println(hours+ "H:" + minutes + "M:" + seconds + "S");
                       }
   //item k
     public void inputTime()
   {Scanner input=new Scanner(System.in);
       System.out.println("Enter hours: ");
     hours=input.nextInt();
     System.out.println("Enter minutes: ");
     minutes=input.nextInt();
     System.out.println("Enter seconds: ");
     seconds=input.nextInt();
   }
   //item l
   public String toString()
   {String s= hours+ "H:" + minutes + "M:" + seconds + "S";
     return s;
   }
   //item m
   public void incrementSeconds(int seconds)
   {this.seconds=this.seconds+seconds;
   }
   //item n
   public void incrementMinutes(int minutes)
   {this.minutes=this.minutes+ minutes;
   }
   //item o
   public void incrementHours(int hours)
   {this.hours=this.hours+hours;
   }
}
// this is the end of class Clock, put all new methods before this
 
 
 MAIN METHOD:
import java.util.*;
import java.text.*;
public class lab80
{public static void main(String[] args)
  {
  //item a
  Clock t1=new Clock();
  //item b
  Clock t2=new Clock();
  //item c
  Clock t3=new Clock(10, 30, 15);
  //item d
  t1.inputTime();
 
  //item e
  t2.setTime(20,12, 45);
  //item f
  System.out.println("t1 hours:"+  t1.getHours());
 //item g
  System.out.println("t2 minutes:" + t2.getMinutes());
  //item h
  System.out.println("t3 seconds:" + t3.getSeconds());
  //item i
  t1.setHours(5);
  //item j
  t2.setMinutes(13);
  //item k
  t3.setSeconds(55);
  //item l
  t1.printTime();
  //item m
  System.out.println(t2);
  //item n
  t1.incrementHours(5);
  //item o
  t1.incrementMinutes(10);
  //item p
  t1.incrementSeconds(2);
  //item q
  t1.printTime();
 
 
 
 
 
}//end main
}//end class

   public void incrementSeconds(int seconds)
   {
       this.seconds=this.seconds+seconds;
       int minutestoIncrement = this.seconds / 60;
       if (minutesToIncrement != 0)
            incrementMinutes (minutesToIncrement);
 
       this.seconds = this.seconds % 60;
   }